/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: fzykd
 * Date: 2023-05-14
 * Time: 16:06
 */

public class LightReceiver {

    public void on(){
        System.out.println("电灯打开了");
    }

    public void off(){
        System.out.println("电灯关闭了");
    }

}
